Unique homo–heterojunction synergistic system consisting of stacked BiOCl nanoplate/Zn–Cr layered double hydroxide nanosheets promoting photocatalytic conversion of CO2 into solar fuels

Lanqin Tang; Ruotian Chen; Xianguang Meng; Bihu Lv; Fengtao Fan; Jinhua Ye; Xiaoyong Wang; Yong Zhou; Can Li; Zhigang Zou

doi:10.1039/C8CC01873A

Unique homo–heterojunction synergistic system consisting of stacked BiOCl nanoplate/Zn–Cr layered double hydroxide nanosheets promoting photocatalytic conversion of CO₂ into solar fuels†

Lanqin Tang,

‡^abcd Ruotian Chen,‡^e Xianguang Meng,

^f Bihu Lv,^d Fengtao Fan,*^e Jinhua Ye,

^f Xiaoyong Wang,^d Yong Zhou,

*^acd Can Li

^e and Zhigang Zou^ac

Author affiliations

* Corresponding authors

^a Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, Department of Physics, Nanjing University, Nanjing 210093, China
E-mail: zhouyong1999@nju.edu.cn

^b College of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China

^c Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China

^d National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China

^e State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, iChEM, Zhongshan Road 457, Dalian 116023, China
E-mail: ftfan@dicp.ac.cn

^f Environmental of Remediation Materials Unit and International Center for Materials Nanoarchitectures (WPI-MANA), 1-1 Namiki, Tsukua, Ibaraki 305-004, Japan

Abstract

A unique homo–heterojunction synergistic system consisting of stacked BiOCl nanoplate/Zn–Cr layered double hydroxide (Zn–Cr LDH) nanosheets was rationally constructed via a simple electrostatic interaction between them. The purposeful spatial isolation of the holes in the crystal facet-based BiOCl homojunction from the BiOCl/Zn–Cr LDH heterojunction interface significantly increased the survivability of the electrons crossing therein. The optimized loading of Zn–Cr LDH in the system is the prerequisite for the enhanced photoconversion efficiency of CO₂.

Chemical Communications

Unique homo–heterojunction synergistic system consisting of stacked BiOCl nanoplate/Zn–Cr layered double hydroxide nanosheets promoting photocatalytic conversion of CO₂ into solar fuels†

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Unique homo–heterojunction synergistic system consisting of stacked BiOCl nanoplate/Zn–Cr layered double hydroxide nanosheets promoting photocatalytic conversion of CO₂ into solar fuels

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